For the last few weeks I have had a problem with my computer starting OK sometimes and other times locking at the BIOS screen, I have 3 hard drives connected and I have tried disconnecting them all one at a time then the 2 non-system ones- no difference. Disconnected all my USB connections (USB drives, Scanner, Printer- same result. I then accidently removed the USB mouse and the system started very well, plugged in the mouse and no problem. Shut down and restarted (mouse connected) old problem. Changed to a different mouse and away it went, as good as ever. If you have a problem, try checking your mouse and keyboard as well.
Hope this helps someone
This thread is now locked and can not be replied to.